1022003431021 has 4 divisors (see below), whose sum is σ = 1026586406272. Its totient is φ = 1017420455772.

The previous prime is 1022003430979. The next prime is 1022003431069. The reversal of 1022003431021 is 1201343002201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022003431021 - 2¹¹ = 1022003428973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022003431021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022003431921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291487291 + ... + 2291487736.

It is an arithmetic number, because the mean of its divisors is an integer number (256646601568).

Almost surely, 2^{1022003431021} is an apocalyptic number.

It is an amenable number.

1022003431021 is a deficient number, since it is larger than the sum of its proper divisors (4582975251).

1022003431021 is an equidigital number, since it uses as much as digits as its factorization.

1022003431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582975250.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1022003431021 its reverse (1201343002201), we get a palindrome (2223346433222).

The spelling of 1022003431021 in words is "one trillion, twenty-two billion, three million, four hundred thirty-one thousand, twenty-one".